Improvement in wrenches



T. McDONOUGH.

wnnncn.

Patented Aug. 29, 1876.

NPETERS. MTG-LITMQGRAPMER, WASHINGTON. D c

UNITED STATES PATENT OFFIG',

THOMAS MGDONOUGH, OF MONT CLAIR, NEW JERSEY.

IMPROVEMENT IN WRENCHES.

Specification forming part of Letters Patent No. 1 81,699, dated August 29, 1876; application filed February 26, 1876.

To all whom it may concern:

Be it known that I, THOMAS MCDONOUGH,

of Mont Olair, Essex county, New Jersey, have invented Improvements in Wrenches, of which the following is a specification My invention consists in the construction and arrangement of the several parts composing a wrench, which I will proceed to describe.

In the accompanying drawing, A and B are the two arms, pivoted at U, which form the body of the wrench. These arms are each provided with ajaw at both ends, as shown.

a and b are curved slots cut through the arms, and crossing each other nearly at right angles in all positions of the arms.

I) is a clamp-screw, that passes through the THOMAS McDONOUGH. Witnesses N. O. PILLSBURY, HUGH GALLAGHER. 

